你可能感興趣的試題

Which two methods can be used to prevent or reduce RFI from colocated directional antennas（）

A.Alternate polarization between colocated antennas
B.Cross-polarize antennas between endpoints
C.Install an RF-shielded box around the antennas
D.Increase the distance between the antennas

單項(xiàng)選擇題

Cisco recommends a decibel referenced to 1 milliwatt signal level for the coverage cell edge at thepredetermined data rate that is needed to support the VoWLAN device and call capacityrequirements. What is that signal level value for Cisco Unified Wireless IP Phones 7920， 7921G， and7925G？（）

A.-65 dBm
B.-67 dBm
C.-69 dBm
D.-70 dBm

Which antenna generally has the narrowest first Fresnel zone in both the horizontal and verticalplanes？（）

你可能感興趣的試題

Which two methods can be used to prevent or reduce RFI from colocated directional antennas（）

Which antenna generally has the narrowest first Fresnel zone in both the horizontal and verticalplanes？（）